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MYFEM
有限元求解柏松方程。本文采用FORTRAN语言编制程序。程序中大部分变量采用有名公共区存储方式存储,这样可以减少内存占用量。
IFG:生成有限元网格信息,即元素节点局部编码与总体编码对照表,节点实际坐标,边界节点编码与边界点上的已知值
GKD:生成总刚一维存储对角元的地址,计算总刚一维存储长度
FIXP:设置已知节点函数值
GK(NI,NJ,ADJ,AIJ):单元刚度矩阵计算
GF(NI,N,M,LE,YI,FE):单元列阵的计算
AK(I,J,AIJ):总刚度矩阵元素迭加
QEB:总刚度矩阵和总列阵合成
BDE:边界条件处理
SOLGS:Gauss-Seidel迭代法求解方程组
UDIFF(NI,NFLAG,UDIF,LE,ADJ):标准元素内形状函数导数计算
DIFF:节点上 , 加权平均
(In this program, FEM was used to solve the possion equation. It is implemented through FORTRAN)
- 2009-05-22 17:22:56下载
- 积分:1
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pq3
pq快速解耦法解电力潮流 适用于电力潮流计算的初学者 简单明了(pq Solving fast decoupled power flows)
- 2010-03-04 08:40:31下载
- 积分:1
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nb035
用平面波展开法计算二维声子晶体带隙,可直接计算得到多重分形谱,计算互信息非常有用的一组程序。( Computation Method D phononic bandgap plane wave, It can be directly calculated multi-fractal spectrum, Mutual information is useful to calculate a set of procedures.)
- 2021-03-25 10:09:14下载
- 积分:1
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shortestway
计算最短路径,可用于计算图论中最短路径的分析和求解(Calculate the shortest path)
- 2012-09-22 13:21:09下载
- 积分:1
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sph
溃坝模型,采用无网格法模拟溃坝情况,简单快捷(Break model, the use of non-grid method to simulate dam case, simple and quick)
- 2020-09-26 17:37:46下载
- 积分:1
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jokdr
由散点插值生成等值线,并且提供颜色选择工具,共有三种插值方法(Generating isolines from scattered interpolation and providing a color selection tool, there are three interpolation methods)
- 2018-11-21 16:03:28下载
- 积分:1
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yxyffbc(dsb)
有限元方法fortran编程,包括二维三维线性非线性静态分析、稳定流瞬时流分析、振动问题、特征值问题、并行计算等。包含了所有子程序。(Finite element method fortran programming, including 2D and 3D linear and nonlinear static analysis, steady flow transient flow analysis, vibration problems, eigenvalue problems, parallel computing. Contains all subroutines.)
- 2013-11-24 23:02:01下载
- 积分:1
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索杆找形分析(力密度法)
说明: 基于力密度法的索杆张力结构找形程序,压缩包力有算例(power density method based on the structure of cable-form-finding procedures, compressed power is counting cases)
- 2006-01-09 14:38:33下载
- 积分:1
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dcccccc
电磁场
向量分析与场论基础
《向量分析与场论基础》就是关于场的数学刻画、描述以及场特征的一般分析。在本概要中,为简明区分向量与标量起见,向量一律采用黑、斜体。
(vector analysis and electromagnetic field theory based "vector analysis and field theory foundation" is on the mathematical characterization. and the description of the general characteristics of the market analysis. In the outline for concise distinction between vector and scalar sake, vector will be used black, in italics.)
- 2007-03-12 21:21:12下载
- 积分:1
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Lagrange
使用拉格朗日乘子法解约束优化问题,例子是最优化问题,有3个线性约束(Using the Lagrange multiplier method to solve the constrained optimization problem)
- 2018-04-06 15:42:47下载
- 积分:1